Hydroxyl-containing liquid phosphor-nitrogen fire retardant and preparation method thereof

Hydroxyl-containing liquid phosphor-nitrogen fire retardant and preparation method thereof

The invention relates to a hydroxyl-containing liquid phosphor-nitrogen fire retardant and a preparation method thereof, and belongs to the technical field of flame retardation. The preparation method comprises that hexachlorocyclotriphosphazene, p-hydroxybenzaldehyde and an acid binding agent are a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LI JINCHUN, HU WENTIAN, ZHANG XIN
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:The invention relates to a hydroxyl-containing liquid phosphor-nitrogen fire retardant and a preparation method thereof, and belongs to the technical field of flame retardation. The preparation method comprises that hexachlorocyclotriphosphazene, p-hydroxybenzaldehyde and an acid binding agent are added into an organic solvent and undergo a heating reflux reaction, the reaction product is subjected to aftertreatment to form white solid powder hexa(4-formylphenoxy)cyclotriphosphazene, the hexa(4-formylphenoxy)cyclotriphosphazene, diethyl phosphite and triethylamine undergo a heating reflux reaction in an organic solvent, and the reaction product is subjected to reduced pressure distillation so that the organic solvent, diethyl phosphite and the catalyst are removed and a hexa(4-diethyl phosphate hydroxymethylphenoxy)cyclotriphosphazene fire retardant is obtained.